Bocking-ohaib



Jan. 1,1929. 1,696,966

E. A. NICHOLSON ROCKING CHAIR Filed Nov. 2, 1927 INVENTOR E.A.N1lch0160]? BY Q fl-A m r E ATTORNEY not tend to creep nor longer than thearms and between the same.

Patented Jan. 1, 1 929.

. nmn A. NICHOLSON, or women, cams-03mm 7 ROCKING-CHAIR.

Application filed November 2, 1927, Serial No. 230,487.

This invention relates to improvements in rocking chairs andparticularly to one especially adapted for porch and otheroutdoor usethough the chair is not necessarily confined to such use.

The principal object of my invention is to provide a rocking chairconstructed of a number of flexibly connected parts so arranged thatsaid chair has extremely easy rocking qualities through a long range ofmovement with butv a minimum amount of movement of the flexibleconnections of the various parts and consequently a minimum of wear ofsuch connections. Further the chair is so constructed that it ispractically impossible to upset the same while. it is occupied and beingrocked as is frequently the case with chairs having the ordinary t )e ofcurved rockers.

he further object of the invention is to construct the rocking chair sothat the portion thereof which is supported by the floor does not moveand consequently the chair does mar a polished floor.

A further object of the invention is to produce a simple and inexpensivedevice and yet one which will be exceedingly effective for the purposefor which it is designed.

These objects 'I accomplish by means of such structure and relativearrangement parts as will fully appear by a perusal of,

the following specification and claim.

In the drawings similar characters ofreferenee indicate correspondingparts in the several views:

Fig. 1 is a perspective elevation of my improved chair shown in itsnormal unoccupied position.

Fig. 2 is a side elevation of the chair shown in a similar position, andwith a forward position indicated in dotted lines.

Referring now more particularly to the numerals of reference on thedrawings, 1

denotes a pair of horizontal base members disposed in transverse andsuitably'spaeed relation and arranged to rest on and engage the floorthroughout their full extent.

Pivoted on to the rear ends of the members 1 as at 2 and'extcnding at aforward and upward angle thereto I are arms 3, rigidly connected attheir upper ends by a flat cross bar 4. Projecting at a rearward andupward angle from the forward ends of the members 1 are other arms 5'which are 3 and extend therepast These arms are of rocking movementrigidl connected together at their upper ends y a flat cross bar 6. Attheir lower ends these arms have rollers or castors 7 which ride ongrooved tracks 8 provided at the forward ends of the members 1.

Adjacent their lower ends the arms 3.

and 5 on each side of the chair are connected by substantiallyhorizontally pivoted links 9. Similar and also substantially horizontallinks 10 are pivotally connected to the arms 3 just below the cross bar4 and to the corresponding arms 5 substantially centrally of the lengthof the latter. The links 10 also form supports'for the arm rests 11which are rigidly secured thereon.

The bars 4 and 6 form supports for the opposite .ends of a seat and backsupport which is preferably a double length of suitable fabric 12 whichis doubled about said bars and has a considerable sag therebetween asshown. To possibly prevent the rollers 7 from jumping the tracks,tension springs 13 extend between the arms 5 and the members'l near therollers, Since the chair is especially designed for exterior use thevarious arms, links and corresponding parts are made of a good grade ofwood, treated with weather resisting paintjwhile the. fabric ofthe saidmember 12 is of a nature which will properly withstand exposure to theelements.

"he parts of the chair are so balanced that the arms 5 will be normallymaintained at a considerable angle to a vertical plane as shown in Fig.2 while the arms 3 are more nearly disposed in a vertical plane. Owingto the arrangement of these parts relative to each other a person seatedin the chair in a natural relaxed position and imparting a rockingmovement to the chair causes the relative position of the arms 3 and 5,and consequently the relative levels of the cross bars 4 and 6, to bealtered to a considerable extent with but very slight movement of therollers being had as shown in dotted lines in Fig. 2. The above notedarrangementalso enables such considerable extent to behad with butlittle physical effort on the part of the occupant of the chair beingnecessary since a slight downward pressure on the lower cross bar 4 isall that is necessary to cause the back arms 5 to follow up sue movementof the bar 4 and its arms and cause the desired rocking movement to beimparted to the chair.

description it will be readily seen that I device as substantially Whilethis specification sets forth in detail the present and preferredconstruction of the deviee, still in practice such deviations from suchdetail may be resorted to as do-not form a. departure from the spirit ofthe invention, as defined by the appended claim.

Having thus described my invention what I claim as new and useful anddesire to secure by Letters Patent is:

A rocking chair comprising transversely alinedand spaeed' base membersto rest on the floor, transversely alined arms projecting forwardly andupwardly from the rear ends of said members, other transversely alinedarms projecting rearwardly and up fulfills the objects of the inventionas set forth herein.

wardly past said first named arms in crossing relation thereto from theforward ends of said members, separate cross bars c011- neeting theupper ends of the respective pairs of arms, a flexible seat elementextending between and supported by said bars pivoted links between thefirst and secon named arms above the plane of crossing thereof, similarlinks connecting said first and second named arms below the plane ofcrossing; thereof, pivot: means between one pair of arms and the basemembers, the lower ends of the other pair ot arms slidably engaging saidmembers, and tension springs between said slidable arms and the basemembers to hold the free ends of said arms against said members.

In testimony whereof I altix my signature.

. EMIL A. NICHOLSON.

